1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2008 Clemens N. Buss <cebuzz@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
27 #include "gioenumtypes.h"
35 * @short_description: An object for emblems
37 * @see_also: #GIcon, #GEmblemedIcon, #GLoadableIcon, #GThemedIcon
39 * #GEmblem is an implementation of #GIcon that supports
40 * having an emblem, which is an icon with additional properties.
41 * It can than be added to a #GEmblemedIcon.
43 * Currently, only metainformation about the emblem's origin is
44 * supported. More may be added in the future.
47 static void g_emblem_iface_init (GIconIface *iface);
51 GObject parent_instance;
59 GObjectClass parent_class;
69 G_DEFINE_TYPE_WITH_CODE (GEmblem, g_emblem, G_TYPE_OBJECT,
70 G_IMPLEMENT_INTERFACE (G_TYPE_ICON, g_emblem_iface_init))
73 g_emblem_get_property (GObject *object,
78 GEmblem *emblem = G_EMBLEM (object);
83 g_value_set_object (value, emblem->icon);
87 g_value_set_enum (value, emblem->origin);
91 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
97 g_emblem_set_property (GObject *object,
102 GEmblem *emblem = G_EMBLEM (object);
107 emblem->icon = g_value_dup_object (value);
111 emblem->origin = g_value_get_enum (value);
115 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
121 g_emblem_finalize (GObject *object)
123 GEmblem *emblem = G_EMBLEM (object);
125 g_object_unref (emblem->icon);
127 (*G_OBJECT_CLASS (g_emblem_parent_class)->finalize) (object);
131 g_emblem_class_init (GEmblemClass *klass)
133 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
135 gobject_class->finalize = g_emblem_finalize;
136 gobject_class->set_property = g_emblem_set_property;
137 gobject_class->get_property = g_emblem_get_property;
139 g_object_class_install_property (gobject_class,
141 g_param_spec_enum ("origin",
142 P_("GEmblem's origin"),
143 P_("Tells which origin the emblem is derived from"),
144 G_TYPE_EMBLEM_ORIGIN,
145 G_EMBLEM_ORIGIN_UNKNOWN,
146 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
148 g_object_class_install_property (gobject_class,
150 g_param_spec_object ("icon",
151 P_("The icon of the emblem"),
152 P_("The actual icon of the emblem"),
154 G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
159 g_emblem_init (GEmblem *emblem)
165 * @icon: a GIcon containing the icon.
167 * Creates a new emblem for @icon.
169 * Returns: a new #GEmblem.
174 g_emblem_new (GIcon *icon)
178 g_return_val_if_fail (icon != NULL, NULL);
179 g_return_val_if_fail (G_IS_ICON (icon), NULL);
180 g_return_val_if_fail (!G_IS_EMBLEM (icon), NULL);
182 emblem = g_object_new (G_TYPE_EMBLEM, NULL);
183 emblem->icon = g_object_ref (icon);
184 emblem->origin = G_EMBLEM_ORIGIN_UNKNOWN;
190 * g_emblem_new_with_origin:
191 * @icon: a GIcon containing the icon.
192 * @origin: a GEmblemOrigin enum defining the emblem's origin
194 * Creates a new emblem for @icon.
196 * Returns: a new #GEmblem.
201 g_emblem_new_with_origin (GIcon *icon,
202 GEmblemOrigin origin)
206 g_return_val_if_fail (icon != NULL, NULL);
207 g_return_val_if_fail (G_IS_ICON (icon), NULL);
208 g_return_val_if_fail (!G_IS_EMBLEM (icon), NULL);
210 emblem = g_object_new (G_TYPE_EMBLEM, NULL);
211 emblem->icon = g_object_ref (icon);
212 emblem->origin = origin;
219 * @emblem: a #GEmblem from which the icon should be extracted.
221 * Gives back the icon from @emblem.
223 * Returns: (transfer none): a #GIcon. The returned object belongs to
224 * the emblem and should not be modified or freed.
229 g_emblem_get_icon (GEmblem *emblem)
231 g_return_val_if_fail (G_IS_EMBLEM (emblem), NULL);
238 * g_emblem_get_origin:
239 * @emblem: a #GEmblem
241 * Gets the origin of the emblem.
243 * Returns: (transfer none): the origin of the emblem
248 g_emblem_get_origin (GEmblem *emblem)
250 g_return_val_if_fail (G_IS_EMBLEM (emblem), G_EMBLEM_ORIGIN_UNKNOWN);
252 return emblem->origin;
256 g_emblem_hash (GIcon *icon)
258 GEmblem *emblem = G_EMBLEM (icon);
261 hash = g_icon_hash (g_emblem_get_icon (emblem));
262 hash ^= emblem->origin;
268 g_emblem_equal (GIcon *icon1,
271 GEmblem *emblem1 = G_EMBLEM (icon1);
272 GEmblem *emblem2 = G_EMBLEM (icon2);
274 return emblem1->origin == emblem2->origin &&
275 g_icon_equal (emblem1->icon, emblem2->icon);
279 g_emblem_to_tokens (GIcon *icon,
283 GEmblem *emblem = G_EMBLEM (icon);
286 /* GEmblem are encoded as
291 g_return_val_if_fail (out_version != NULL, FALSE);
295 s = g_icon_to_string (emblem->icon);
299 g_ptr_array_add (tokens, s);
301 s = g_strdup_printf ("%d", emblem->origin);
302 g_ptr_array_add (tokens, s);
308 g_emblem_from_tokens (gchar **tokens,
315 GEmblemOrigin origin;
323 G_IO_ERROR_INVALID_ARGUMENT,
324 _("Can't handle version %d of GEmblem encoding"),
333 G_IO_ERROR_INVALID_ARGUMENT,
334 _("Malformed number of tokens (%d) in GEmblem encoding"),
339 icon = g_icon_new_for_string (tokens[0], error);
344 origin = atoi (tokens[1]);
346 emblem = g_emblem_new_with_origin (icon, origin);
347 g_object_unref (icon);
349 return G_ICON (emblem);
353 g_emblem_iface_init (GIconIface *iface)
355 iface->hash = g_emblem_hash;
356 iface->equal = g_emblem_equal;
357 iface->to_tokens = g_emblem_to_tokens;
358 iface->from_tokens = g_emblem_from_tokens;